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Expired Canadian patentCanada

Ornamental transfer specially adapted for adherence to nylon

CA 1340239 C · Owner: Mahn, John E. Sr. · Inventors: Mahn, John E. Sr.; Mahn, John E. Jr.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An ornamental heat transfer is described which is especially adapted for application to nylon fabrics. The ornamental heat activated transfer includes an upper layer which is generally a thermoset layer, cloth such as twill or flock which is bonded to a lower layer. The lower layer is an uncured linear saturated polyester film which includes a heat activatable isocyanate curing agent. Upon application of the transfer to nylon the transfer is heated which melts the uncured saturated polyester and activates the curing agent. Thus while the linear saturated alkyl polyester is in a molten state the curing agent causes the polyester to cure in tight confinement with the nylon fabric.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 4, 1989
GrantedDecember 15, 1998
Term endedDecember 15, 2015
Patent numberCA 1340239 C
Classification (IPC)D06N3/18 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedMay 4, 1989Patent grantedDec 15, 1998Term endedDec 15, 2015

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.